LD Pumped Nd: YAG Laser

Abstract

Three types of LD pumped Nd: YAG laser are described. (1) In a “Lens focused LD end pumped Nd: YAG laser”, a cw laser output power of 290mW is obtained at an LD output power of 1.3W. (2) In an “LD directly coupled micro Nd YAG slab laser”, an LD beam is reflected at the upper and lower surfaces of a micro-slab, thereby bringing about excitation area small enough to give a TEM00 Nd: YAG laser beam. (3) In an “off-centered LD side pumped Nd: YAG laser”, a cw 1-W Nd: YAG laser beam of a stable output power is obtained at a pumping power of 8.4W.